Lexmark C543dn Service Manual

Connector locations 5-7
5025-2xx, 4xx
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JLVPS1
Low-voltage power supply
1 +5 V dc
2 Ground
3 +5 V dc
4 Ground
5 +5 V dc
6 Ground
7 +24 V dc
8 Ground
9 +24 V dc
10 Ground
11 +24 V dc
12 Ground
13 RELAY_DRIVE
14 ZERO_XING_IN
15 HEAT1_ON
16 Ground
JMIRR1
Mirror motor connector
1 MM_REFR
2 MM_LOCK, +3.3 V dc
3 MM_START
4 Ground
5 +24 V dc
JOPP1
Operator panel connector
1 I2C_DATA
2 V_PANEL+5 V, +5 V dc
3 I2C_CLK
4 Ground
5 OP_IRQ_N, +4–5 V dc
6 +3.3 V dc
7 Ground
Controller board connectors (continued)
Note: SW indicates voltage is switched on during a print cycle, otherwise voltages are taken with printer
at Ready state (door closed) and cables plugged in.
Connector Pin no. Signal

Lexmark C543dn Specifications

General

Brand	Lexmark
Model	C543dn
Category	Printer
Language	English